@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  color-scheme: light;
  --bg: #f7f5ef;
  --ink: #111111;
  --muted: #3f3f3f;
  --paper: #ffffff;
  --accent: #ff4f00;
  --accent-2: #c7ff00;
  --border: #111111;
  --grid: rgba(17, 17, 17, 0.08);
  --shadow: 6px 6px 0 #111111;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  letter-spacing: 0.2px;
}

.bg {
  position: fixed;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, var(--grid), var(--grid) 1px, transparent 1px, transparent 28px),
    repeating-linear-gradient(0deg, var(--grid), var(--grid) 1px, transparent 1px, transparent 28px),
    linear-gradient(120deg, #fdfbf6 0%, #f3efe7 55%, #f7f5ef 100%);
  z-index: -1;
}

.hero {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 32px clamp(24px, 4vw, 48px) 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.logo {
  width: clamp(160px, 22vw, 220px);
  height: 48px;
  border: 3px solid var(--border);
  background: var(--paper);
  display: grid;
  place-items: center;
  padding: 4px 8px;
  box-shadow: var(--shadow);
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

h1 {
  margin: 0;
  font-family: "Bebas Neue", "IBM Plex Mono", sans-serif;
  font-size: clamp(32px, 4vw, 44px);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero p {
  margin: 6px 0 0;
  color: var(--muted);
  max-width: 520px;
}

.badge {
  align-self: flex-start;
  padding: 6px 10px;
  border: 2px solid var(--border);
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  background: var(--paper);
}

.panes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  padding: 0 clamp(24px, 4vw, 48px) 48px;
}

.pane {
  background: var(--paper);
  border: 3px solid var(--border);
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pane:nth-child(2n) {
  transform: translateY(6px);
}

.pane-header h2 {
  margin: 0;
  font-family: "Bebas Neue", "IBM Plex Mono", sans-serif;
  font-size: 22px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pane-header h3 {
  margin: 0;
  font-family: "Bebas Neue", "IBM Plex Mono", sans-serif;
  font-size: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.pane-header p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.drop {
  border: 2px dashed var(--border);
  padding: 18px;
  position: relative;
  background: #faf7ef;
  transition: background 0.2s ease, transform 0.15s ease;
}

.drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.drop-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
  color: var(--muted);
}

.drop strong {
  color: var(--ink);
  font-weight: 600;
  text-transform: uppercase;
}

.drop small {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.drop.is-dragover {
  background: repeating-linear-gradient(135deg, #fff3e6, #fff3e6 8px, #ffe0cc 8px, #ffe0cc 16px);
  transform: translateY(-2px);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.field input {
  padding: 10px 12px;
  border: 2px solid var(--border);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.preset {
  border: 2px solid var(--border);
  padding: 12px;
  background: #fff;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.preset strong {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.preset span {
  font-size: 12px;
  color: var(--muted);
}

.preset.is-active {
  background: var(--accent-2);
  box-shadow: var(--shadow);
  transform: translate(-2px, -2px);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.primary,
.secondary,
.ghost {
  padding: 12px 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid var(--border);
  background: var(--accent);
  color: #111;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.secondary {
  background: #fff;
}

.ghost {
  background: transparent;
}

.primary:hover:not(:disabled),
.secondary:hover:not(:disabled),
.ghost:hover:not(:disabled) {
  transform: translate(-2px, -2px);
}

.primary:disabled,
.secondary:disabled,
.ghost:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.status {
  font-size: 12px;
  color: var(--muted);
}

.list {
  border: 2px solid var(--border);
  background: #fff;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
}

.list-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
  color: var(--ink);
}

.list-row a {
  color: var(--ink);
  font-weight: 600;
}

.list-row span {
  color: var(--muted);
  white-space: nowrap;
}

.mix-level-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 90px;
  gap: 10px;
  align-items: center;
}

.mix-level-row input {
  width: 100%;
  padding: 8px 10px;
  border: 2px solid var(--border);
  background: #fff;
  font-family: inherit;
}

.divider {
  height: 3px;
  background: var(--border);
  margin: 6px 0;
}

audio {
  width: 100%;
  border: 2px solid var(--border);
  background: #fff;
}

.download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border: 2px solid var(--border);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result {
  border: 2px solid var(--border);
  padding: 14px;
  background: #fff;
}

.result-line {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 4px 0;
  text-transform: uppercase;
}

.footer {
  padding: 0 clamp(24px, 4vw, 48px) 48px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

@media (max-width: 768px) {
  .hero {
    padding-bottom: 0;
  }
  .pane {
    transform: none;
  }
}